4A ABSA questions with accurate answers
____ is a technical drawing of graphical projection used for producing
two-dimensional images of three-dimensional objects.
A. Measurement projection
B. Circular projection
C. Angle projection
D. Oblique projection
E. Template projection Ans✓✓✓ D. Oblique projection
____ is defined as the ratio between the strength of the material and the
maximum stress in the part.
A. hardness
B. ductility
C. elasticity
D. brittleness
E. factor of safety Ans✓✓✓ E. factor of safety
____ is the insufficient deposit of weld metal over the base metal
resulting in the weld face or root surface extending below the adjacent
surface of the base metal from reduced thickness.
A. Distortion
B. Underfill
C. Overlap
D. Undercut
,E. Slag inclusions Ans✓✓✓ B. Underfill
____ is the most efficient method of forced or induced fan control in
terms of power consumption, but has the highest initial cost.
A. Constant speed control
B. Blade pitch
C. Variable speed control
D. Outlet damper control
E. Inlet damper control Ans✓✓✓ C. Variable speed control
_____ adds sensible heat to the inlet feed water and improved boiler
efficiency by recovering heat from the boiler exhaust gases.
A. furnace
B. reheater
C. superheater
D. air preheater
E. economizer Ans✓✓✓ E. economizer
_____ are categorized as having a high flammability.
A. B1 refrigerants
B. A3 refrigerants
C. C1 refrigerants
D. A1 refrigerants
E. A2 refrigerants Ans✓✓✓ B. A3 refrigerants
, _____ fuel does not produce visible smoke when burned.
A. Wood
B. Hydrocarbons
C. Coal
D. Anthracite
E. Oil Ans✓✓✓ D. Anthracite
_____ illustrates the amount of work completed in certain periods of
time in relation to the amount of planned work for those periods.
A. Orthographic charts
B. Milestone charts
C. Gantt charts
D. Protractors
E. Compasses Ans✓✓✓ C. Gantt charts
_____ is installed in the convection section of the boiler furnace.
A. Steam drums
B. Economizers
C. Air preheaters
D. Horizontal type superheater
E. Vertical type superheater Ans✓✓✓ D. Horizontal type superheater
____ is a technical drawing of graphical projection used for producing
two-dimensional images of three-dimensional objects.
A. Measurement projection
B. Circular projection
C. Angle projection
D. Oblique projection
E. Template projection Ans✓✓✓ D. Oblique projection
____ is defined as the ratio between the strength of the material and the
maximum stress in the part.
A. hardness
B. ductility
C. elasticity
D. brittleness
E. factor of safety Ans✓✓✓ E. factor of safety
____ is the insufficient deposit of weld metal over the base metal
resulting in the weld face or root surface extending below the adjacent
surface of the base metal from reduced thickness.
A. Distortion
B. Underfill
C. Overlap
D. Undercut
,E. Slag inclusions Ans✓✓✓ B. Underfill
____ is the most efficient method of forced or induced fan control in
terms of power consumption, but has the highest initial cost.
A. Constant speed control
B. Blade pitch
C. Variable speed control
D. Outlet damper control
E. Inlet damper control Ans✓✓✓ C. Variable speed control
_____ adds sensible heat to the inlet feed water and improved boiler
efficiency by recovering heat from the boiler exhaust gases.
A. furnace
B. reheater
C. superheater
D. air preheater
E. economizer Ans✓✓✓ E. economizer
_____ are categorized as having a high flammability.
A. B1 refrigerants
B. A3 refrigerants
C. C1 refrigerants
D. A1 refrigerants
E. A2 refrigerants Ans✓✓✓ B. A3 refrigerants
, _____ fuel does not produce visible smoke when burned.
A. Wood
B. Hydrocarbons
C. Coal
D. Anthracite
E. Oil Ans✓✓✓ D. Anthracite
_____ illustrates the amount of work completed in certain periods of
time in relation to the amount of planned work for those periods.
A. Orthographic charts
B. Milestone charts
C. Gantt charts
D. Protractors
E. Compasses Ans✓✓✓ C. Gantt charts
_____ is installed in the convection section of the boiler furnace.
A. Steam drums
B. Economizers
C. Air preheaters
D. Horizontal type superheater
E. Vertical type superheater Ans✓✓✓ D. Horizontal type superheater
